1613361 has 4 divisors (see below), whose sum is σ = 2151152. Its totient is φ = 1075572.

The previous prime is 1613329. The next prime is 1613363. The reversal of 1613361 is 1633161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1613361 - 2⁵ = 1613329 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1613363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268891 + ... + 268896.

It is an arithmetic number, because the mean of its divisors is an integer number (537788).

2^1613361 is an apocalyptic number.

It is an amenable number.

1613361 is a deficient number, since it is larger than the sum of its proper divisors (537791).

1613361 is an equidigital number, since it uses as much as digits as its factorization.

1613361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537790.

The product of its digits is 324, while the sum is 21.

The square root of 1613361 is about 1270.1814830960. The cubic root of 1613361 is about 117.2853724940.

The spelling of 1613361 in words is "one million, six hundred thirteen thousand, three hundred sixty-one".